Where does “성님” come from?

성님 (Jeju) comes from Middle Chinese 성, from Japanese 性, from Middle Chinese 性.

Ancestry of “성님”, step by step

성님 traces back through two separate lines of ancestry.

via Middle Chinese 성

StepLanguageWordMeaning
1Middle Chinese성—
2Japanese性the nature of something; sex, gender; gender
3Middle Chinese性—

via Korean 님

StepLanguageWordMeaning
1Korean님esteemed; Mr., Ms., Mrs; beloved; lord
2Old Koreannirim—
Every word from Middle Chinese 性 →Every word from Japanese 性 →Every word from Middle Chinese 성 →